| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Permanent magnet fishing tool | US38960253 | 1953-11-02 | US2830663A | 1958-04-15 | KIRBY JOHN H |
| 102 | Core drilling apparatus | US59106356 | 1956-06-13 | US2789790A | 1957-04-23 | KIRBY II JOHN H |
| 103 | Drill head | US10957549 | 1949-08-10 | US2721726A | 1955-10-25 | JOHNSON HOWARD L |
| 104 | Magnetic fishing tool | US30168252 | 1952-07-30 | US2668077A | 1954-02-02 | KIRBY II JOHN H |
| 105 | Oil field fishing tool for rock bits | US10408049 | 1949-07-11 | US2654627A | 1953-10-06 | DREW STORY |
| 106 | Well bore retrieving tool | US14841050 | 1950-03-08 | US2637590A | 1953-05-05 | ORTLOFF JOHN E |
| 107 | Fishing tool | US14926050 | 1950-03-13 | US2613980A | 1952-10-14 | HAWKINS KENNETH C |
| 108 | Hydraulic electromagnetic well fishing tool | US74136047 | 1947-04-14 | US2595632A | 1952-05-06 | BIVINGS ALBERT E; BIVINGS JOHN A; DUNNAM PETE H |
| 109 | Magnetic fishing tool | US9961349 | 1949-06-17 | US2582602A | 1952-01-15 | PAYSINGER JESSE A |
| 110 | Brake resetting and time delay mechanism | US61593245 | 1945-09-13 | US2498992A | 1950-02-28 | GOTTSCHALL CLARENCE R |
| 111 | Magnet | US56760244 | 1944-12-11 | US2451231A | 1948-10-12 | MANEGOLD ROBERT L |
| 112 | Retrieving tool for well bores | US58694245 | 1945-04-06 | US2431361A | 1947-11-25 | ATHY CLIFFORD R |
| 113 | Oil well fishing magnet | US69460333 | 1933-10-21 | US2092316A | 1937-09-07 | LANE WILFRED G |
| 114 | Fishing apparatus for wells | US29615119 | 1919-05-10 | US1473606A | 1923-11-13 | BRANDON ARTHUR H |
| 115 | Magnetic fishing tool for wells | US35208320 | 1920-01-17 | US1439686A | 1922-12-26 | BRANDON ARTHUR H |
| 116 | MAGNETORHEOLOGICAL DOWN-HOLE PACKING ELEMENTS | US16269239 | 2019-02-06 | US20190242208A1 | 2019-08-08 | John Edwin Estrada-Giraldo; Babak Akbari; Garrett Lowry Nielsen |
| Aspects of drilling, production, hydraulic fracturing, and well work-over operations operations that create full seal magnetorheological down-hole packing elements are described. Some examples describe a system that includes a magnetorheological fluid and a magnetic assembly tool (installed on a work-string) configured to generate a magnetic field and create, in a flow of the magnetorheological fluid, a semi-solid packing element, and/or a magneto-rheological effect altering the fluid viscosity, in a drill pipe, casing, or hole. Various examples also include disclosure of methods for releasing stuck pipe, controlling fluid loss while drilling, open-hole packing, conforming, plugging and abandoning, and multistage fracturing that can reduce operational risks and non-productive time. | ||||||
| 117 | Rheological Fluid Lock of Shaft to Housing | US15781437 | 2016-01-27 | US20180355675A1 | 2018-12-13 | Geoffery A. Samuel; Neil Roy Choudhury |
| A rheological lock apparatus includes a fluid chamber formed within a housing between a pair of seals. The fluid chamber contains a rheological fluid. An inner surface of the housing has a first plurality of splines projecting into the fluid chamber and extending longitudinally along a longitudinal dimension of the chamber. A driveshaft extends axially through the chamber such that the pair of seals are sealed against the driveshaft. The driveshaft includes a second plurality of splines. A field generator is coupled to one of the driveshaft or the housing to generate a field through the rheological fluid during times when the housing is substantially immobile in a borehole. | ||||||
| 118 | MAGNETIC PULSE ACTUATION ARRANGEMENT FOR DOWNHOLE TOOLS AND METHOD | US15674290 | 2017-08-10 | US20180045006A1 | 2018-02-15 | Carlos Prieto; Christopher Ryan Hern; Daniel Ewing |
| An arrangement for accelerating a workpiece including a system inductor configured to be supplied a current, a workpiece positioned magnetically proximate to the system inductor, a workpiece inductor associated with the workpiece and configured to magnetically interact with the system inductor. A method for moving a workpiece in a magnetic pressure arrangement comprising increasing inductance of a workpiece subsystem of the arrangement by disposing a workpiece inductor at the workpiece. A method for moving a workpiece in a magnetic pressure system comprising tuning one or more of a resistor, capacitor or inductor of the system to adjust a phase angle of a magnetic pressure produced in the system. | ||||||
| 119 | Downhole magnet, downhole magnetic jetting tool and method of attachment of magnet pieces to the tool body | US14842423 | 2015-09-01 | US09863219B2 | 2018-01-09 | Simon Leiper; Kevin Robertson |
| A tool for suspending in a well retrieves various metal debris from the well, and includes an elongated tool body with a plurality of magnets included in a plurality longitudinal ridges which are circumferentially spaced. In the method a plurality of magnets can be positioned within openings, recesses, or pockets in each ridge, and held in place by one or more retaining plates, the tool being connected to a drill string and lowered into a well. | ||||||
| 120 | Magnetic cleaning tool | US14414746 | 2013-07-17 | US09863217B2 | 2018-01-09 | Ruairidh Andrew Cooper |
| A magnetic cleaning tool for collecting ferrous debris in a wellbore and a method of cleaning a wellbore. The magnetic cleaning tool has a tool body for attachment in a work string, one or more magnets supported on the tool body, and a sleeve located around the tool body which is arranged to be moveable along the body to provide selective coverage of the magnets. Embodiments are described providing shear pins and spring loaded balls to hold the sleeve either over the magnets or free of the magnets. An expandable piston, moveable by action of a drop ball, is described to release the sleeve. The sleeve is arranged so that the magnets can be covered and therefore effectively inactive on run-in and during downhole operations, and uncovered to be active when pulled out of the wellbore. | ||||||
QQ群二维码
意见反馈
意见反馈